Texas Instruments LM3402HV Evaluation Board LM3402HVEVAL/NOPB LM3402HVEVAL/NOPB Datenbogen
Produktcode
LM3402HVEVAL/NOPB
SW
1
RON
2
VIN
3
BOOT
4
VCC
8
GND
7
DIM
6
CS
5
SW
1
RON
2
VIN
3
BOOT
4
VCC
8
GND
7
DIM
6
CS
5
DAP
SNVS450E – SEPTEMBER 2006 – REVISED MAY 2013
Connection Diagram
Figure 1. 8-Lead Plastic VSSOP-8 Package
Figure 2. 8-Lead Plastic SO PowerPAD-8 Package
See Package Number DGK (S-PDSO-G8)
See Package Number DDA0008B
PIN DESCRIPTIONS
Pin(s)
Name
Description
Application Information
1
SW
Switch pin
Connect this pin to the output inductor and Schottky diode.
2
BOOT
MOSFET drive bootstrap pin
Connect a 10 nF ceramic capacitor from this pin to SW.
3
DIM
Input for PWM dimming
Connect a logic-level PWM signal to this pin to enable/disable the power FET and
reduce the average light output of the LED array.
reduce the average light output of the LED array.
4
GND
Ground pin
Connect this pin to system ground.
5
CS
Current sense feedback pin
Set the current through the LED array by connecting a resistor from this pin to
ground.
ground.
6
RON
On-time control pin
A resistor connected from this pin to VIN sets the regulator controlled on-time.
7
VCC
Output of the internal 7V linear
Bypass this pin to ground with a minimum 0.1 µF ceramic capacitor with X5R or
regulator
X7R dielectric.
8
VIN
Input voltage pin
Nominal operating input range is 6V to 42V (LM3402) or 6V to 75V (LM3402HV).
DAP
GND
Thermal Pad
Connect to ground. Place 4 to 6 vias from DAP to bottom layer ground plane.
2
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